Finding the Fourth Proportional to 286,268.36, 395,042.82 and 158,940.68
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Solution
The fourth proportional to 286,268.36, 395,042.82 and 158,940.68 is: 219,333.96
Step by Step Solution
- Step 1: Write the proportion equation
286,268.36 : 395,042.82 = 158,940.68 : x - Step 2: Convert to fraction form
286,268.36/395,042.82 = 158,940.68/x - Step 3: Cross multiply
286,268.36x = 395,042.82 × 158,940.68 - Step 4: Simplify right side
286,268.36x = 62,788,374,439.92 - Step 5: Solve for x
x = 62,788,374,439.92/286,268.36 - Step 6: Final answer
x = 219,333.96
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.